Switch with no condition

Switch without a condition is the same as switch true.

This construct can be a clean way to write long if-then-else chains.

switch-with-no-condition.go

package main
import (
    "fmt"
    "time"
)
func main() {
    t := time.Now()
    switch {
    case t.Hour() < 12:
        fmt.Println("Good morning!")
    case t.Hour() < 17:
        fmt.Println("Good afternoon.")
    default:
        fmt.Println("Good evening.")
    }
}